P(═O)H to P–OH Tautomerism: A Theoretical and Experimental Study
作者:Benjamin G. Janesko、Henry C. Fisher、Mark J. Bridle、Jean-Luc Montchamp
DOI:10.1021/acs.joc.5b01618
日期:2015.10.16
are important functionalities in organophosphorus chemistry and display prototropic tautomerism. Quantifying the tautomerization rate is paramount to understanding these compounds’ tautomerization behavior, which may impact their reactivities in various reactions. We report a combined theoretical and experimentalstudy of the initial tautomerization rate of a range of phosphinylidene compounds. Initial
膦亚基化合物R 1 R 2 P(O)H在有机磷化学中具有重要的功能,并显示质子互变异构现象。量化互变异构率对于理解这些化合物的互变异构行为至关重要,这可能会影响它们在各种反应中的反应性。我们报告了一系列次膦亚基化合物的初始互变异构速率的理论和实验研究相结合。发现初始互变异构率降低的顺序为H 3 PO 2 > Ph 2 P(O)H>(PhO)2 P(O)H> PhP(O)(OAlk)H> AlkP(O)(OAlk)H ≈(AlkO)2P(O)H,其中“ Alk”表示烷基取代基。计算研究与实验验证的结合为各种磷化合物的反应性建立了一种定量方法,以及一种精确的预测工具。
Detailed Investigation of the Radical-Induced Destruction of Chemical Warfare Agent Simulants in Aqueous Solution
作者:Amberashley Abbott、Tim Sierakowski、James J. Kiddle、Kristin K. Clark、Stephen P. Mezyk
DOI:10.1021/jp101720j
日期:2010.6.10
such as the use of advanced oxidation or reduction process freeradical treatments may also be a viable option. We have examined here the primary kinetics and reaction mechanisms for an extensive library of chemical warfare agent simulants with the oxidizing hydroxyl radical and reducing hydrated electrons in water. From these values, it is seen that the reductive destruction occurs primarily through a
A highlyregio- and stereoselective, nickel(II)-catalyzed procedure for the hydrophosphonylation of ynamides has been developed. This protocol provides a straightforward and efficient entry to a series of β-aminovinylphosphonates that can easily be prepared in good yields from a wide range of ynamides and dialkyl phosphites as well as useful insights into the reactivity of ynamides under nickel catalysis
β-Phosphorylated five membered ring nitroxides, a new class of stable nitroxides. 1. Synthesis by Reaction. of dialkylphosphites with 1-pyrroline-n-oxides.
Dialkylphosphites add to 2,5,5-trialkyl-1-pyrroline-N-oxides to give, after oxidation with copper(II)acetate, the corresponding β-phosphorylated nitroxides, which are stable in many organic solvents.
Ionization of the phosphorus-hydrogen bond in diethyl phosphonate
作者:Edward S. Lewis、L. Gene Spears
DOI:10.1021/ja00299a027
日期:1985.6
Le phosphonate de diethyle est oxyde par les halogenes dans une reaction soumise a une catalyse basique generale quand la concentration en halogene est suffisamment elevee
Le phosphonate de diethyle est oxyde par leshales dans une 反应 soumise a une catalyze basique generale quand la concentration en halone est suffisamment elevee